外部接口大量超时，把整个系统拖垮，引发雪崩！如何解决？

Posted 2022-03-02 ImportNew

-Dserver.port=-Dcsp.sentinel.dashboard.server=localhost:-Dproject.name=sentinel-dashboard -jar sentinel-dashboard-handle1(params) blockHandlerTestHandler(params, BlockException blockException) ( AUTO_INCREMENT PRIMARY (BTREE, (AUTO_INCREMENT=loadDegradeRule() List<DegradeRuleDO> degradeRuleDOList = degradeRuleDao.queryAllRule(); (CollectionUtils.isEmpty(degradeRuleDOList)) newMd5Hex = DigestUtils.md5Hex( (StringUtils.isBlank(newMd5Hex) || StringUtils.equals(lastMd5Hex, newMd5Hex)) List<DegradeRule> rules = List<ArrayList<>(); rules = degradeRuleDOList.stream().map(degradeRuleDO -> DegradeRule rule = DegradeRule(degradeRuleDO.getResourceName()) .setGrade(CircuitBreakerStrategy.SLOW_REQUEST_RATIO.getType()) .setCount(degradeRuleDO.getCount()) .setTimeWindow(degradeRuleDO.getTimeWindow()) .setSlowRatioThreshold(degradeRuleDO.getSlowRatioThreshold()) .setMinRequestAmount(degradeRuleDO.getMinRequestAmount()) .setStatIntervalMs(degradeRuleDO.getStatInterval()); resourceNameList.add(degradeRuleDO.getResourceName()); rule; ).collect(Collectors.toList()); (CollectionUtils.isNotEmpty(rules)) DegradeRuleManager.loadRules(rules); ConsumerProxyFactory.resourceNameList = resourceNameList; lastMd5Hex = newMd5Hex; log.error(+ rules);invoke(proxy, Method method, Class<?> clazz = proxy.getClass().getInterfaces()[urlCode = clazz.getName() + + method.getName();(resourceNameList.contains(urlCode)) Entry entry = entry = SphU.entry(urlCode); responseString = HttpClientUtil.postJsonRequest(url, header, body); (BlockException blockException) log.error( DegradeBlockExcetion(urlCode); (entry != entry.exit();